Heavy Metals Analysis in Drinking Water of Lakki Marwat District, KPK, Pakistan

Abstract

The present study was designed to investigate presence of different elements in drinking water of district Lakki Marwat. Concentration of iron, zinc, lead, cadmium and chromium were studied in water samples collected from seventeen different areas of Lakki Marwat district. It was observed that concentration of iron was above the standard values in all samples and was found maximum in Wanda and Machen Khel areas of Lakki Marwat. On the other hand, zinc was found to be well below the standard limits in all areas. The concentration of lead varied in different areas with the highest concentration in Kaka Khel while the lowest was found in Bego Khel and Mir Janan areas. Cadmium was found above the standard value of WHO in eight places while remaining places had lower values of cadmium. Chromium was found at lower concentration in thirteen areas while the remaining areas had chromium concentration above the standard limits of WHO. It can be concluded from the present study that iron is commonly exceeding the standard limits in drinking water of district Lakki Marwat, while the remaining element are variable in quantity in different areas.